Improvements in or relating to apparatus for the recording of sound tracks on photographic film,申请号GB19460032929-传众专利搜索

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发明名称	Improvements in or relating to apparatus for the recording of sound tracks on photographic film
摘要
申请公布号	GB638357(A)	申请公布日期	1950.06.07
申请号	GB19460032929	申请日期	1946.11.06
申请人	ALCHANAN COHEN	发明人
分类号	G02F1/01;G11B7/00	主分类号	G02F1/01
代理机构		代理人
主权项
地址

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